In blood and heart essay

This is called the pulmonary circulation. It is made up of four chambers, two upper chambers known as Atria and two lower, thicker walled chambers, known as Ventricles. The valve separating the right atrium from the right ventricle is known as the right artrio- ventricular valve tricuspid valve and is made up of three flaps or cusps.

Now from left ventricle oxygenated blood is pumped into aorta through aortic semilunar valve to supply it to all body parts. The upper chamber on each side is called the auricle or atrium and is the receiving chamber into which blood flows through veins.

These are the only veins which carry oxygenated blood. Cardiomyopathy can be classified as primary or secondary. Atrio-ventricular valve tricuspid which is a three flap valve present between the right auricle and right ventricle, stops back flow of blood from ventricles to auricle.

Heart Sound One can hear two heart sounds for each heart beat or cardiac cycle.

How Your Heart Works

Air is sucked in through the mouth and nose, through the voice box, down the windpipe, and into the two lungs. Thrombocytes these are cell fragments that help in blood clotting. It transports oxygen and carbon dioxide for delivery and disposal. She writes to inform consumers about nutrition and health topics.

Essay on the structure and functions of Heart for students

The graph of electrical voltage produced by heart with time recorded by an electrocardiograph is called electrocardiogram or ECG. The electrical activity spreads through the walls of the atria and causes them to contract.

The South African Surgeon Dr. Pericardial disease can be caused by many things such as occurring after a heart attack. Sometimes the pacemaker becomes faulty slow heart beat causing heart trouble.

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The function of the heart is to maintain a constant circulation of blood throughout the body. Each side is subdivided into an upper and lower chamber. As the ventricle contracts, blood leaves the heart through the aortic valve, into the aorta and to the body.

As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. Portal circulation includes all the veins which drain blood from the abdominal part of the digestive system from the spleen, pancreas and gall bladder via liver to the inferior Vena Cava.

It brings deoxygenated blood from posterior or lower body parts i.

Essay: What is Heart Disease?

It has a strong muscular wall and is made up of a special type of muscle known as myocardium, which is only found in the heart. Anglin, The circulatory system is pumped by the heart and always circulates through the body in the same direction. Right and left posterior vena cava brings deoxygenated blood to right auricle from left and right lower body parts such as abdomen and legs.

The blood from all these organs unites to form the portal vein and carried to the liver. Arteries carry blood full of oxygen to all parts of the body, the further away from the heart the smaller they become, eventually turning into capillaries.

At the same time, carbon dioxide, a waste product of metabolismpasses from the blood into the air sacs. Pericardial disease is inflammation pericarditisstiffness constrictive pericarditisor fluid accumulation pericardial effusion of the pericardium. It contains enormous amounts of protein called haemoglobin, which is responsible for its dark or bright red colour.

It arises from right ventricles and carries In blood and heart essay blood to the lungs for oxygenation. It is usually located on the level of the fifth intercostals space about 9 cm from the midline. The contraction phase is systole, followed by relaxation phase known as the diastole.

Learn more about pain relief and arthritis at http: Thus, the portal veins unlike all other veins in the body both commence and end as capillaries. The alveoli has an enormous surface area due to the blood vessels and capillaries, the walls are moist and thin, this is because of a substance secreted inside the alveoli known as surfactant and is produced by specialized cells.“As the heart beats, the heart pushes blood through a network of blood vessels called arteries.

As the blood travels through the arteries, it pushes against the sides of these blood vessels and the strength of this pushing is called blood pressure.” We will write a custom essay sample on Lab Report: Blood Pressure specifically for you.

A heart attack or MI is a serious medical emergency in which the supply of blood to the heart is suddenly blocked, usually by a blood clotting. lack of blood to the heart can seriously damage the heart muscle.

The Heart and Circulation of Blood Essay The Heart and Circulation of Blood In this research paper, I will be analyzing the process of blood circulation within the human body. I will be focusing on the pulmonary circuit and the systemic circuit, as well as the relationship with the hepatic portal system.

Right side of the heart. Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. WebMD does not.

Essay on the structure and functions of Heart for students which empty their content into the left atrium of the heart.

Essay on Human Heart: Location, Structure and Other Details (with diagram)

This oxygenated blood passes through the left artrio ventricular valve into the left ventricle from where it is pumped into the aorta, the main artery of the body to all parts of the body. words comprehensive essay. Blood flow must increase and the heart must pump more blood. Regular exercise results in increased cardiac output, this results in an improved delivery of oxygen to active muscles.

The more you exercise the more efficient cardio-respiratory system becomes at supplying oxygenated blood throughout your body.

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In blood and heart essay
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